A ultra low power CMOS pA/V transconductor and its application to wavelet filters | Zendy

Peterson R. Agostinho | Zendy; Sandro A. P. Haddad | Zendy; Jader A. De Lima | Zendy; Wouter A. Serdijn | Zendy; Osamu Saotome | Zendy

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A ultra low power CMOS pA/V transconductor and its application to wavelet filters

Author(s) -

Peterson R. Agostinho,

Sandro A. P. Haddad,

Jader A. De Lima,

Wouter A. Serdijn,

Osamu Saotome

Publication year - 2007

Publication title -

data archiving and networked services (dans)

Language(s) - English

Resource type - Conference proceedings

DOI - 10.1145/1284480.1284497

Subject(s) - triode , cmos , transconductance , electrical engineering , electronic engineering , transistor , power (physics) , low voltage , topology (electrical circuits) , low power electronics , materials science , voltage , power consumption , engineering , capacitor , physics , quantum mechanics

Two topologies of ultra low-power CMOS triode transconductor are proposed. Its input transistors are kept in the triode region to benefit from the lowest gm/ID ratio. The gm is adjusted by a well defined (W/L) and VDS, the latter a replica of the tuning voltage VTUNE. Transconductance down to hundreds of pA/V are obtained and used to implement a 6th order wavelet filter. The resulting design complies with a 1.5V supply and a 0.35µm CMOS process. The total power consumption of the wavelet filters using the first and second topology of transconductor equals 51nW and 114nW, respectively.

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